Amphibians are ectothermic, anamniotic, four-limbed vertebrate animals that constitute the class Amphibia. In its broadest sense, it is a paraphyletic group encompassing all tetrapods, but …

Amphibians are small vertebrates that need water, or a moist environment, to survive. The species in this group include frogs, toads, salamanders, and newts. All can breathe and …

Dec 19, 2025 · amphibian, (class Amphibia), any member of the group of vertebrate animals characterized by their ability to exploit both aquatic and terrestrial habitats.

Mar 13, 2024 · Amphibians are ectothermic (cold-blooded) vertebrates that belong to the Class Amphibia. A defining characteristics is their ability to live both in aquatic and terrestrial …

Amphibians are an extraordinary class of vertebrate animals, with thousands of species ranging from tiny small frogs to the largest amphibians on Earth. Their ability to live in water and on …

Explore facts and photos about amphibians found in the United States. Learn about their range, habitat, diet, life history, and more.

5 days ago · Discover 35 types of amphibians with detailed reviews, identification, and fascinating facts about frogs, salamanders, and more.

General Biology Amphibians are ectothermic, regulating their body temperature with behavior as they rely on the ambient environment for their body temperature. Many temperate species can …

Feb 6, 2025 · Amphibians are a class of vertebrates that include frogs, toads, salamanders, and newts. They are unique for their ability to live both in water and on land. Amphibians typically …

Populations of frogs appear to be declining in many parts of the world due to habitat loss, global climate change, and the spread of disease.